See Bar and line graphs (ggplot2) for a few examples, or the The R Graphics Cookbook by Winston Chang for many more. Bar graphs. To make a bar graph from the sample BOD data frame included with R, ...

Here are a dozen great ggplot2 extensions you should know, along with example code and graphics. As a bonus, I’ve included a list of additional packages worth exploring at the end of the article ...

Here’s a quick example. Below is a bar chart of high temperatures in Boston during a recent work week. Sharon Machlis. Graph generated by ggplot2 in R.

In practice, this means that ggplot2 plotting functions are wrapped within pewplots functions, and code is added or modified to extend the functionality of the original plotting function. In addition ...